Centrifugal pump.



11. v. BURRELL;

GENTRIFUGAL PUMP. APPL IOATION FILED MAY 6,1908.

"941,557, Patented Nov. 30, 1909.

, v 8! mm "To:

fizz/ there n s'rarns DELAVAN V. BURRELL, 0F ROCKY FORD, COLORADO.

CENTRIFUGAL PUMP.

Specification of Letters Patent.

Patented Nov. 30.; 1909.

Application filed May 6, 1909. Serial No. 494,268.

To all whom it may concern:

Be it. known that l, Dnmvan V. BtutnnLL, a citizen of the United States,residing at Rocky Ford, in the county of Utero and State of Colorado,have invented a new and useful Centrifugal Pump, of which the followingis a specification. 1

This invention relates to centrifugal pulnps designed more particularlyfor irrigation purposes or where a large volume of water is required.

The object of the presentinvention is to provide a very simple pump ofhigh elliciency which -an be manufactured at a low cost, in order toenable those having a suilicicnt water supply for irrigation, eitherfrom undertlow, streams, or other sources, to establish pumping plantson such an economical basis as would make practical the development oflarge areas requiring irrigation.

A. further object is to so iconstruct the pump that all its parts whichconduct Water shall revolve together. and that the structure r shall beso supported and located with respect to the conveying channels as notto interfere wlth the tlow.

Another ()bJHl; is to provide a device for holding the priming whichwill in. no Wayohstruct the How when the pump is in operation. I

..\nother ob ect is to provide an air-tight device for priming which isreadily made so after priming.

Further advantages will be noted when the invention is betterunderstood, its structural details being fully described 'in thespecification following hereafter, and illustrated in the accompanyingdrawings in which Figure 'l is a vertical section of the pump. Fig. 2 isa plan view.

Referring more particularly to the drawing, 5 denotes a well or othersuitable source of water supply. into which a suction pipe 6 extends,said pipe being provided with an ordinary foot valve 7. ()n the upperend of the suction pipe is screwed a head 8 which is hollow. The primingpipe 9 also screw into this head in such a position as to extend inaxial alincment with the suction pipe 6.

By means of the head 8, the pipes 6 and 9 are coupled together, so thatthey will rotate together. ()n the pipe 9 218 mounted a flanged pulley10 which carries a drive belt by means of which the pump is operofpower.

At 11 is indicated a suitable framework proi'ided with bearings in whichthe pipes 6 and 9 are supported. l lach bearing comprises a conicalbushing 12 mounted in an opening made in the frame, in the bore of whichbushings are received rollers 13. The pipes are fitted with conicalthrust collars H which engage the rollers.

provided with a cap 15 or other suitable closure, and adjacent to thehead 8, said pipe is provided with a form of valve 16.

At 17 are indicated the discharge pipes of the pump,thcy being fitted attheir outer ends with flexible nozzles 18 which may be short sections ofhose. The pipes screw into a horizontal plane. 011 the pipes 17 aremounted brackets 19 to which are connected one of the ends of thesprings 20, the other ends of the springs being connected to the nozzlesadjacent to the outer or discharge ends thereof. The function of thesesprings is to hold the nozzles in upright position when the pump is notworking, for a purpose to be presently described. The discharge ends ofthe nozzles in this position are in the same horizontal plane as thevalve 16.

The operation of the pump is as follows: The closure 15 is removed, andwater is poured into the priming pipe 9 whereupon it runs down thesuction pipe 6 and closes the pi'imin pipe to completely fill thesuction pipe, t 1e head. discharge pipes 17,'and the priming pipe up tothe .valve 16. Inasmuch as the discharge 'ends of the nozzles 18 saidnozzle-L also till. The valve 16 is then vclosed, thus l'eavmg no air inthe pipes be low the valve. More water is now poured which the closure15 is applied, thus making the priming pipe absolutely air-tight. Thepump is now rotated by the beltpassing over the pulley 10. As soon' assufficient speed is attained, the centrifugal force generated causes thewater to discharge from also tends to straighten out said nozzles untilthey extend in axial 'alinement with the dis chargepfgem 17, they thusassuming a posl- The upper end' of the priming pipe 9 is gate, or othersuitable the head 8 and extend radially therefrom 1n foot valve 7.Snfiicient water is poured into into the priming pipe 9 until it isfilled, after the nozzles 18. This same centrifugal forceated from anengine or other suitable source lie in the same horizontahplane as thevalve,

tion of least resistance to the flow I tion pipe,

Water, and as they are free of valves, and

devoid of curves, the resistance to the flow is reduced to the minimum.Upon stopping the pump, the flow from the nozzle ceases,

and the springs 20 pull them back to their upright position, thusretaining the priming.

The ump discharges into a circular trough 21 w ieh is so positioned thatthe nozzles discharge thereinto when they are swung out- Wardly into thedischarging position. This tankis entirely separate from the pump, andtherefore does not interfere with the operation thereof.

What is claimed is:

1. A centrifugal pump comprising a sucradial discharge pipes connectedthereto, means for rotating the discharge )i es flexible dischar enozzles connected to the discharge pipes, means for bringing the nozzlesinto erect position when the pump is out of aetion a priming pipeconnected to the suction pipe, and extending above the plane of theoutlet ends of the nozzles when of the l in erect position, and a valvein the primin pipe in the same horizontal plane as Silh outlet ends.

2. A centrifugal pump comprisinga suction pipe, radial discharge pipesconnected thereto, means for rotating the discharge pipes, flexibledischarge nozzles connected to the discharge pipes, a yieldingconnection between the discharge pipes and the outlet ends of thenozzles for holding said nozzles in erect position when the pump is outof action, a priming pipe connected to the suc tion pipe, and extendingabove the plane of the outlet ends of the nozzles when in erectposition, and a valve in the priming pipe in the same horizontal planeIn testimony that 1 claim the foregoing as my own, I have hereto allixedmy signature in the presence of two witnesses.

DELAVAN V. BURRELL.

Witnesses JAMES PIPER, R. W. BONEY.

as said outlet. ends. i

